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Displaying items by tag: Freshwater

#FishFarm - Long-term solutions for freshwater treatment at Connemara fish farms are a priority as one local company seeks planning permission for a new pipeline, according to Galway Bay FM.

The moves come in the wake of recent controversy over illegal extraction of freshwater from lakes used to treat amoebic gill disease in salmon farms.

Údarás na Gaeltachta is now investigating longer-term freshwater availability for the growing aquaculture industry in south Connemara. Galway Bay FM has more HERE.

Published in Fishing

#InlandWaterways - Reports indicate that as many as 500 freshwater fish of various species have been found dead in the River Dodder in Tallaght, south Dublin.

The fish kill was discovered on Friday evening upstream of the Old Bawn bridge, and according to the Irish Independent, Inland Fisheries Ireland says samples have been taken from the scene - and that a possible source has been identified.

However, the fisheries body refused to comment on speculation that the fish kill was a result of discharge from industrial waste or illegal dumping.

The fish kill covers a 600-metre stretch of the river in the south Dublin suburb.

Speaking to The Irish Times, Redmond O’Hanlon of the Dodder Anglers Group said it is the worst fish kill he has witnessed "in 30 years".

Published in Inland Waterways

#Angling - The Irish Times' angling correspondent Derek Evans welcomes the start of the salmon angling season tomorrow with a look at regulation changes for 2013.

Among them he notes that the number of open fisheries has risen to 55, while 59 rivers - five fewer than last year - will be closed, which marks some progress in Inland Fisheries Ireland's (IFI) efforts to ensure sustainability of Ireland's freshwater fish stocks.

Meanwhile, the catch and release programme has been modified to encompass the River Liffey from Islandbridge to Leixlip Dam for the first time, although at 32 the scheme includes two fewer rivers than last year.

"Catch and release will maintain, among other things, club membership interest and ensure a good footfall on the riverbank," writes Evans.

"Provided catch and release protocols are practised correctly, research has shown that the survival rate can be close to 100 per cent."

The Irish Times has more on the story HERE.

Published in Angling

Marine Institute Research Vessel Tom Crean

Ireland’s new marine research vessel will be named the RV Tom Crean after the renowned County Kerry seaman and explorer who undertook three major groundbreaking expeditions to the Antarctic in the early years of the 20th Century which sought to increase scientific knowledge and to explore unreached areas of the world, at that time.

Ireland's new multi-purpose marine research vessel RV Tom Crean, was delivered in July 2022 and will be used by the Marine Institute and other State agencies and universities to undertake fisheries research, oceanographic and environmental research, seabed mapping surveys; as well as maintaining and deploying weather buoys, observational infrastructure and Remotely Operated Vehicles.

The RV Tom Crean will also enable the Marine Institute to continue to lead and support high-quality scientific surveys that contribute to Ireland's position as a leader in marine science. The research vessel is a modern, multipurpose, silent vessel (designed to meet the stringent criteria of the ICES 209 noise standard for fisheries research), capable of operating in the Irish Exclusive Economic Zone (EEZ). The Tom Crean is able to go to sea for at least 21 days at a time and is designed to operate in harsh sea conditions.

RV Tom Crean Specification Overview

  • Length Overall: 52.8 m
  • Beam 14m
  • Draft 5.2M 

Power

  • Main Propulsion Motor 2000 kw
  • Bow Thruster 780 kw
  • Tunnel thruster 400 kw

Other

  • Endurance  21 Days
  • Range of 8,000 nautical miles
  • DP1 Dynamic Positioning
  • Capacity for 3 x 20ft Containers

Irish Marine Research activities

The new state-of-the-art multi-purpose marine research vessel will carry out a wide range of marine research activities, including vital fisheries, climate change-related research, seabed mapping and oceanography.

The new 52.8-metre modern research vessel, which will replace the 31-metre RV Celtic Voyager, has been commissioned with funding provided by the Department of Agriculture, Food and the Marine approved by the Government of Ireland.

According to Aodhán FitzGerald, Research Vessel Manager of the MI, the RV Tom Crean will feature an articulated boom crane aft (6t@ 10m, 3T@ 15m), located on the aft-gantry. This will be largely used for loading science equipment and net and equipment handling offshore.

Mounted at the stern is a 10T A-frame aft which can articulate through 170 degrees which are for deploying and recovering large science equipment such as a remotely operated vehicle (ROV’s), towed sleds and for fishing operations.

In addition the fitting of an 8 Ton starboard side T Frame for deploying grabs and corers to 4000m which is the same depth applicable to when the vessel is heaving but is compensated by a CTD system consisting of a winch and frame during such operations.

The vessel will have the regulation MOB boat on a dedicated davit and the facility to carry a 6.5m Rigid Inflatable tender on the port side.

Also at the aft deck is where the 'Holland 1' Work class ROV and the University of Limericks 'Etain' sub-Atlantic ROV will be positioned. In addition up to 3 x 20’ (TEU) containers can be carried.

The newbuild has been engineered to endure increasing harsher conditions and the punishing weather systems encountered in the North-East Atlantic where deployments of RV Tom Crean on surveys spent up to 21 days duration.

In addition, RV Tom Crean will be able to operate in an ultra silent-mode, which is crucial to meet the stringent criteria of the ICES 209 noise standard for fisheries research purposes.

The classification of the newbuild as been appointed to Lloyds and below is a list of the main capabilities and duties to be tasked by RV Tom Crean:

  • Oceanographic surveys, incl. CTD water sampling
  • Fishery research operations
  • Acoustic research operations
  • Environmental research and sampling operation incl. coring
  • ROV and AUV/ASV Surveys
  • Buoy/Mooring operations